CN206957703U - The test device of gas gas desorption quantity is lost in shale gas well - Google Patents
The test device of gas gas desorption quantity is lost in shale gas well Download PDFInfo
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- CN206957703U CN206957703U CN201720314401.3U CN201720314401U CN206957703U CN 206957703 U CN206957703 U CN 206957703U CN 201720314401 U CN201720314401 U CN 201720314401U CN 206957703 U CN206957703 U CN 206957703U
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Abstract
The utility model discloses the test device that gas gas desorption quantity is lost in a kind of shale gas well, including coring tube and coring bit, coring tube has coring drum outer wall and coring tube inwall, rubber tube is sequentially installed with the coring tube inwall of coring bit top, dividing plate, liquid level sensor, high pressure micro constant flow pump, control unit, battery, coring pitching, high pressure micro constant flow pump is arranged in coring tube inwall by support, support is provided with pressure sensor, high pressure micro constant flow pump is connected by tapping line with magnetic valve, the high pressure micro constant flow pump other end is provided with suction inlet, core barrel dividing plate is with forming test chamber in coring tube inwall；Coring pitching side is provided with microswitch.The utility model solves the problems, such as shale air content test loss tolerance, and directly, simply, reliably, testing cost is cheap for method of testing.
Description
Technical field
The utility model belongs to unconventionaloil pool production technique field, more particularly to loss gas solution in a kind of shale gas well
The test device of inspiratory capacity.
Background technology
Recent two decades, the exploitation of U.S.'s shale gas obtain immense success, are allowed to complete energy revolution, change world energy sources
General layout.
The Chinese tcm of shale gas total resources 134, ranks first in the world.As sinopec is in Fuling Chongqing's Jiao's masonry dam
And petrochina is in the ground such as Sichuan Changning, Weiyuan Longma small stream group shale gas work of exploration and development so that the current shale gas in China is opened
Send out and utilize and occupied second place of the world.
It is well known that shale gas is to adsorb based on the adsorbed gas of shale stromal surface, supplemented by free state, therefore shale
Air content data are to evaluate the good and bad important indicator of shale.In drilling and coring delivery, as rock core is lifted in the wellbore, have substantial amounts of
Shale gas (absorption and free state) can scatter and disappear, and cause ground shale site desorption test to reflect exactly containing for shale
Tolerance.Therefore, it is necessary to a kind of testing tool and method that can lose tolerance to shale during coring is found, with accurate
Evaluate the gassiness figureofmerit of shale in ground.
The content of the invention
The purpose of this utility model is losing the survey device of gas gas desorption quantity in shale gas well is provided, and this method solve
Shale air content test loss tolerance problem, directly, simply, reliably, testing cost is cheap for method of testing.
The purpose of this utility model and solves its technical problem underlying using following technical scheme to realize：A kind of page
The test device of gas gas desorption quantity is lost in rock gas well, including coring tube and coring bit, coring tube have coring drum outer wall and taken
Core cylinder inwall, it is permanent that rubber tube, dividing plate, liquid level sensor, high pressure micro are sequentially installed with the coring tube inwall of coring bit top
Pump, control unit, battery, coring pitching are flowed, high pressure micro constant flow pump is arranged in coring tube inwall by support, set on support
There is pressure sensor, high pressure micro constant flow pump is connected by tapping line with magnetic valve, and the high pressure micro constant flow pump other end is provided with
Suction inlet, core barrel dividing plate is with forming test chamber in coring tube inwall；Coring pitching side is provided with microswitch.
During drilling extracting core, after coring bit cutting shale, rock core and mud are progressed into core barrel, are completed in cored
Afterwards, when rock core fully enters coring tube, by coring pitching, microswitch sensor in cylinder is triggered, under control unit instruction,
The micro constant flow pump of coring tube internal high-voltage, test intracavity liquid is constantly aspirated, coring tube lower end is pumped into by tapping line
Rubber tube in, rubber tube is gradually expanded after being pressurized, and rock core is encased completely, until locking, plays sealing function, test chamber
Interior liquid maintains rubber cylinder pressure 20Mpa by high pressure micro constant current pumping, blocks mud in pit shaft to enter coring tube, logical
The output of intracavitary liquid level sensor is crossed, calculates dischargeable capacity inside test chamber；Rock core is lifted with drilling rod, and solution suction phenomenon takes place,
Stripping gas enters test chamber by the mesopore of dividing plate, the pressure change in cavity pressure sensor record different periods test chamber
Situation and data storage can so obtain shale in well with the desorption rate matched curve F (t) of time until arrive ground,
F (t) is integrated, you can obtain stripping gas total amount of this rock core in whole pit shaft, this tolerance is the rock core in pit shaft
In loss tolerance.After coring tube is put to ground, coring pitching is taken out, now microswitch sensor resets, control unit
Send instruction, electromagnetism valve events, to rubber tube pressure release, removal of core, you can carry out next step test job.
The utility model has clear advantage and beneficial effect compared with prior art.From above technical scheme,
The utility model has the characteristics that：
1st, solves the problems, such as shale air content test loss tolerance.Original various tests, as U.S.'s USBM methods be
Under several hypothesis, pushed away using the data of ground acquisition are counter, data accuracy, reliability, promptness are restricted.
2nd, method of testing is direct, simple, reliable.Tested rock core propose pit shaft when, direct measurement and obtain, after avoiding
Phase cumbersome experiment link.
3rd, testing cost is cheap.At present, using the rock core sealed test method of foreign countries, expense is a bite well members up to a million,
The utility model, which can be applied, can greatly reduce testing cost.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Marked in figure：1. coring drum outer wall, 2. coring pitchings, 3. batteries, 4. control units, 5. coring tube inwalls, 6. is high
Press micro constant flow pump, 7. supports, 8. suction inlets, 9. liquid level sensors, 10. rubber tubes, 11. coring bits, 12. dividing plates, 13. rows
Liquid pipe line, 14. test chambers, 15. magnetic valves, 16. pressure sensors, 17. microswitches.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to according to the utility model proposes shale gas well in lose gas stripping gas
Test device embodiment, feature and its effect of amount, describe in detail as after.
Referring to Fig. 1, the test device of gas gas desorption quantity, including coring tube and coring bit are lost in a kind of shale gas well
11, coring tube has coring drum outer wall 1 and coring tube inwall 5, and rubber is sequentially installed with the top coring tube inwall 5 of coring bit 11
Cylinder 10, dividing plate 12, liquid level sensor 9, high pressure micro constant flow pump 6, control unit 4, battery 3, coring pitching 2, high pressure micro are permanent
Flow pump 6 to be arranged in coring tube inwall 5 by support 7, support 7 is provided with pressure sensor 16, and high pressure micro constant flow pump 6 passes through
Tapping line 13 is connected with magnetic valve 15, and the other end of high pressure micro constant flow pump 6 is provided with suction inlet 8, core barrel dividing plate 12 and coring
Test chamber 14 is formed in cylinder inwall 5；The side of coring pitching 2 is provided with microswitch 17.
During drilling extracting core, after coring bit 11 cuts shale, rock core and mud are progressed into core barrel, in cored
After the completion of, when rock core fully enters coring tube, by coring pitching 2, the sensor of microswitch 17 in cylinder is triggered, in control unit
Under 4 instructions, the micro constant flow pump 6 of coring tube internal high-voltage, liquid in test chamber 14 is constantly aspirated, passes through the pump of tapping line 13
Enter in the rubber tube 10 of coring tube lower end, rubber tube 10 is gradually expanded after being pressurized, and rock core is encased completely, until locking, is played
Sealing function, liquid is aspirated by high pressure micro constant flow pump 6 in test chamber 14, maintains pressure 20Mpa in rubber tube 10, blocks pit shaft
Middle mud enters coring tube, and liquid level sensor 9 exports in transit chamber, calculates the inside dischargeable capacity of test chamber 14；Rock core is with drilling rod
Lifting, takes place solution suction phenomenon, stripping gas enters test chamber 14 by the mesopore of dividing plate 12, and cavity pressure sensor 16 is remembered
Pressure changing and data storage in record different periods test chamber until arrive ground, can so obtain shale in well with
The desorption rate matched curve F (t) of time, is integrated to F (t), you can obtains stripping gas of this rock core in whole pit shaft
Total amount, this tolerance are the loss tolerance of the rock core in the wellbore.After coring tube is put to ground, coring pitching 2 is taken out, now
The sensor of microswitch 17 resets, and control unit 4 sends instruction, and magnetic valve 15 acts, to the pressure release of rubber tube 10, removal of core,
Next step test job can be carried out.
It is emphasized that：It the above is only preferred embodiment of the present utility model, not the utility model appointed
What formal limitation, every any simple modification made according to the technical essence of the utility model to above example, etc.
With change and modification, in the range of still falling within technical solutions of the utility model.
Claims (1)
1. the test device of gas gas desorption quantity is lost in a kind of shale gas well, it is characterised in that：Including coring tube and coring bit
(11), coring tube has a coring drum outer wall (1) and coring tube inwall (5), in coring bit (11) top coring tube inwall (5) successively
Rubber tube (10), dividing plate (12), liquid level sensor (9), high pressure micro constant flow pump (6), control unit (4), battery are installed
(3), coring pitching (2), high pressure micro constant flow pump (6) are arranged in coring tube inwall (5) by support (7), and support is set on (7)
There is pressure sensor (16), high pressure micro constant flow pump (6) is connected by tapping line (13) with magnetic valve (15), and high pressure micro is permanent
Stream pump (6) other end is provided with suction inlet (8), and core barrel dividing plate (12) is with forming test chamber (14) in coring tube inwall (5)；Coring
Pitching (2) side is provided with microswitch (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720314401.3U CN206957703U (en) | 2017-03-29 | 2017-03-29 | The test device of gas gas desorption quantity is lost in shale gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720314401.3U CN206957703U (en) | 2017-03-29 | 2017-03-29 | The test device of gas gas desorption quantity is lost in shale gas well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206957703U true CN206957703U (en) | 2018-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720314401.3U Active CN206957703U (en) | 2017-03-29 | 2017-03-29 | The test device of gas gas desorption quantity is lost in shale gas well |
Country Status (1)
| Country | Link |
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| CN (1) | CN206957703U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014717A (en) * | 2017-03-29 | 2017-08-04 | 铜仁中能天然气有限公司 | The method of testing and its device of gas gas desorption quantity are lost in a kind of shale gas well |
-
2017
- 2017-03-29 CN CN201720314401.3U patent/CN206957703U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014717A (en) * | 2017-03-29 | 2017-08-04 | 铜仁中能天然气有限公司 | The method of testing and its device of gas gas desorption quantity are lost in a kind of shale gas well |
| CN107014717B (en) * | 2017-03-29 | 2024-04-12 | 上海瑞达峰致能源科技股份有限公司 | Method and device for testing desorption gas amount of lost gas in shale gas well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201127 Address after: 072750 no.4-202, No.1, Fangyang Road, Zhuozhou City, Baoding City, Hebei Province Patentee after: Gong Dajian Address before: Xiangyang Road 554300 Guizhou area of Tongren province Bijiang District No. 1 Patentee before: TONGREN ZHONGNENG NATURAL GAS Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230912 Address after: 200941, 5th Floor, Building 12, No. 3938 Wenchuan Road, Baoshan District, Shanghai Patentee after: Shanghai Ruida Fengzhi Energy Technology Co.,Ltd. Address before: 072750 East Geophysical Exploration Company Courtyard 4-202, No. 1 Fanyang Road, Zhuozhou City, Baoding City, Hebei Province Patentee before: Gong Dajian |
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| TR01 | Transfer of patent right |